Causes of three-month fetal arrest

When a woman finds out she is pregnant, she should be happy but also pay special attention to her body. Because when pregnancy is first discovered, it is usually in the early stages of pregnancy and the fetal image is not very stable. If you are not careful, miscarriage or fetal arrest may occur. Some pregnant women experience fetal arrest when they reach the third month of pregnancy. What are the causes of fetal arrest at three months?

1. Symptoms of fetal arrest in three months of pregnancy

The third month of pregnancy is a period when fetal arrest is most likely to occur, because the third month of pregnancy belongs to the early pregnancy stage, and the embryo can be easily affected by maternal or external factors, causing fetal arrest and affecting normal development. The specific symptoms of fetal arrest in the third month of pregnancy can be reflected in the following aspects.

1. The pregnancy reaction disappears. Pregnant women no longer experience nausea, vomiting and other reactions, and the feeling of breast swelling also decreases. Examination may reveal that the uterus is no longer continuing to grow and the weight has also decreased.

2. Vaginal bleeding. Some pregnant women will experience vaginal bleeding because the fetus is expelled from the uterus by natural elimination, and dark red blood will flow out.

Experts say: Most dead fetuses can be expelled on their own after fetal arrest, but if the dead fetus has not been expelled 4 weeks after the pregnant woman, she may experience symptoms such as general fatigue, loss of appetite, abdominal distension, and heavy bleeding, and special attention should be paid.

3. Lower abdominal pain. Some pregnant women may experience mild pain in the lower abdomen.

4. The fetal heart rate disappears. When a pregnant woman with fetal arrest goes to the hospital for examination, it may be found that the fetal heartbeat has disappeared.

However, the above symptoms cannot be generalized, as they vary from person to person. Some pregnant women do not have obvious symptoms after fetal arrest, while some pregnant women do not even have symptoms of fetal arrest, but directly experience abdominal pain and then miscarriage. Experts say that if a pregnant woman feels unwell or feels abnormal, the most accurate way to confirm it is through an ultrasound examination.

2. Reasons for fetal arrest in the third month of pregnancy

Clinically, the common causes of fetal arrest in three months of pregnancy are as follows.

1. Chromosomal abnormality: Whether it is sperm or egg, as long as the chromosomes carrying genetic material are abnormal, even if a fertilized egg is formed, the embryo will not develop normally. Therefore, if there is a history of genetic disease in the family, a medical diagnosis and pre-pregnancy physical examination should be conducted before pregnancy.

2. Uterine abnormality: The overall environment in the uterus is not good, which will affect the development of the embryo. Data show that miscarriages caused by uterine defects account for about 10%-15% of clinical cases, and fetal arrest accounts for about 10%.

3. Placental factors: Placental abruption, placenta previa, etc. can all lead to insufficient oxygen supply to the placenta, causing fetal hypoxia and fetal arrest.

4. The pregnant woman herself has chronic diseases: Pregnant women have serious chronic diseases, such as diabetes, hypertension, heart disease, viral hepatitis, etc., and long-term medication will affect the life and health of the fetus.

3. What to do if the fetus stops growing in the third month of pregnancy

Once the fetal arrest is confirmed in the third month of pregnancy, the pregnant woman should terminate the pregnancy as soon as possible and undergo induced labor. The method of inducing labor can be achieved by injecting the levanol anesthetic needle, which can mask the severe pain that the pregnant woman experiences during the operation and reduce the pain she feels.

In addition, if the embryo remains in the uterus for a long time after fetal arrest and has not been expelled, it is necessary to monitor the coagulation function status, prepare fresh blood during induction of labor, and pay attention to preventing postpartum hemorrhage and infection. After inducing labor to remove the dead fetus, the placenta, umbilical cord and fetus should be carefully examined to find out the cause of the fetal arrest and avoid the same situation in the next pregnancy.

This article introduces in detail the symptoms, causes and coping methods of fetal growth retardation in the third trimester of pregnancy. If you are a woman whose fetus stops growing after three months of pregnancy, then you'd better carefully refer to the contents of this article to see the specific reasons and coping methods for fetal stop growing after three months of pregnancy. The content of this article can help you respond to fetal growth retardation as quickly as possible.